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    SubjectRe: [PATCH][CFT] per-process namespaces for Linux
    On Wed, 28 Feb 2001 13:07:29 -0500 (EST), Alexander Viro <viro@math.psu.edu> wrote:

    > On Wed, 28 Feb 2001, David L. Parsley wrote:

    >> Yeah, mount --bind is cool, I've been using it on one of my projects
    >> today. But - maybe I'm just not thinking creatively enough - what are
    >> the advantages of mount --bind versus just symlinking?
    >
    > 1) Correctly working ".." (obviously relevant only for directories)
    > 2) Try to create symlinks on read-only NFS mount. For bonus points, try
    > to do that one one client without disturbing everybody else.
    > 3) Try to make it different for different users, for that matter.

    And disadvantages: you can't have broken symlinks.

    This actually turns out to be quite a bit of a problem when one tries
    to use bind mounts with autofs. For one thing, it's perfectly legal
    to have /autofs/foo as a symlink to /autofs/bar/foo, where /autofs/bar
    is not yet mounted -- but a bind mount can't handle that...

    Ion

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